Sheet-feeding device.



H. Y. ARMSTRONG.

SHEET FEEDING DEVICE.

APPLICATION FILED MAY 31, 1012.

Patented May 13, 1913.

STATES Para OFFICE.

HARRY YARRINGTON ARMSTRONG, OF ELGIN, ILLINOIS, ASSIGNOB T0 ARMSTRONG WRAPPING MACHINE COMPANY, OF LOUISVILLE, KENTUCKY, A CORPORATION OF KENTUCKY.

SHEET-FEEDING- DEVICE.

Specification of Letters Patent.

Application filed May 81, 1812. Serial No. 700,673.

Patented May 13, 1913.

To all whom it may concern Be it known that I, HARRY Y. ARMSTRONG, a citizen of the United States, and a resident of Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Sheet-Feeding Devices; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in sheet feeding devices for feeding sheets one at a time from a group ofsheets.

The invention is herein shown as applied to mechanism for feeding wrappers, in a gum wrapping machine, from a group of wrappers sustained in a suitable magazine, across a slot through which the gums are advanced to be wrapped in said wrap ers.

Among the objects of the invention is to provide an improved means for maintaining the sheets, as they are discharged from the group, under the action of the feeding device until the sheets have been fully discharged into the space arranged to receive the same, and thereby avoid incomplete or abortive action of the feeding device.

The invention consists in the construction and arrangement ofthe parts hereinafter described and more particularly pointed out in the appended claims.

In the drawings ;-Figure 1 is a vertical section of a wrapper magazine, a stripper roll and parts of the wrapping machine rectly associated therewith, showing my 1nvention applied thereto. Fig. 2 is a section on theline 2'-2 of Fig. 1. Fig. 3 is a plan view thereof with parts broken away. Fig.

4 is a perspective view of the guide plate for guiding the wrapper sheets from the magazine.

As shown in the drawings, 10 designates a magazine. adapted to contain a group of sheets or arranged edgewise therein and 11 designates a rotative stripper troll arranged across the discharge end of the magazine and fixed to a shaft 12 that rotatively mounted in bearings 13 carriedby themagazine, as herein shown. The said stripper roll comprises in part a smooth periplhera portion 14; and in part frictional peripheral portion or-segment 15 against which the sheets a are pressed by any suitable pressure device,

zine by the action of the friction segment 15 thereagainst into a recess 19 below the discharge end of the magazine and across a wrapper slot 20 throu h which ms or like articles are adapte to be a vance'd, as by means of a plunger 21.

22 designates a needle mounted on a transverse shaft 23 and adapted topenetrate the first few sheets at the discharge end of the magazine to prevent morethan one sheet being withdrawn or fed at a time.

The features of construction ab'ove described are generally similar to the construction shown in my prior application for U. S. Letters Patent, Serial No. 669,935 filed on the 8th day of January, 1912, and constitute, per 36 no part of the present invention.

25 designates a curved bifurcated guide member arranged just below the discharge and of the magazine, with its curved surface concentric to the axis of the stripper roll 12. Said guide plate is so arran ed relatively to the stripper roll that it is etween the guide plate and the stripper roll that the sheets or wrappers a are delivered from the magazine to the recess 19 below. Said guide member is formed with an attaching shank or member 26 that is adapted to be attached to the lower wall of the magazine, as by the screws 27. The curved guide member is provided at its sides with guards 28, spaced apart a distance to permit the sheets or Wrappers to pass between the same. The presence of said guards prevents'the sheets or wrappers being directed out of their proper line of feed and insures that said sheets shall be fed directly and squarely into the recess 19.

30 designates a presser member arranged below the discharge end of the magazine to press the sheets against the stripper roll after the same have been carried downwardly below the discharge end of the magazine. Said presser member, as herein shown, has the form of a leaf spring, the shank 31 of which may be attached by the screws 27 to the magazine bottom. The free end 32 of the spring is curved outwardly away from the roll to yieldingly engage the stripper roll at its curved portion or at a point above its free'end. Said free end of the spring extends between the arms of the guide member for engagement with said stripper roll. against a sheet interposed between the spring and the segment 15 of the strlpper roll has the effect to positivel withdraw a sheet from the magazine and irect it to the recess 19 until the friction segment has passed the presser device or sprlng; said presser device serving to positively hold the sheet or wrapper against the-friction segment until the delivery of the sheet or wrapper into the recess 19 has been completed.

. The presser device or spring has no effect spring is smoother than said friction segto retard the delivery of the sheet or wrapper into the recess 19, inasmuch as the contacting surface. of the presser device or ment 15. The curving of the free end of the presser member away from the roll beyond the point of engagement of said membe'r-with the roll avoids tendency of the sheets clinging to the roll and to bethereby carried beyond the recess 19 such as would tend to occur if the end of the member engaging the roll were straight. This is of special advantage when operated on thin s e ets, such as c ewing gum' wrappers.

While reference is herein made to the direction of 'feed of the sheets from the magazine, wherein the sheets are fed downwardly from the magazine, it will be understood that the terms of direction are not limiting terms, but the sheets may be fed from the magazine in other directions than downwardly.

I claim. as my invention 1. A sheet feeding mechanism for feeding sheets from a magazine to a receiving .recess' comprising, in combination with a magazine having an open discharge end, a

The pressure of said spring stripper roll arranged across the open end of the magazine with its axis between the recess and. the bottom of. the magazine, a

presser device acting against the periphery of the roll at a point beneath the discharge end ofthe magazine and vertically above said recess, the presser device being arranged tangentially tothe periphery. of the roll and terminally curved away from the roll and uiding means cooperating with the presser evice and roll to guide the sheets into said recess. I

2. A sheet feeding mechanism comprising a magazine for a group of sheets, a stripper roll at the. discharge end thereof, a plate fixed to the magazine and extending toward said roll and having a curved' guide portion concentric to the roll between which.

and said stripper. roll the sheetsare delivered, and a presser device acting against said roll abreast said guide portion.

3. A sheet feeding mechanism comprising a magazine for a group of sheets, a stripper roll at the discharge end thereof, a fixed,

two-arm curved guide between which and said stripper roll the sheets are delivered, and a spring bearing against the stripper roll between the arms of said guide.

4. A sheet feeding mechanism, comprising a magazine for agroup of sheets, a stripper roll at the discharge end thereof, a twoarmed curved guide between which and said stripper roll .the sheets are delivered, a

spring bearing against the stripper roll between the arms of said guide and guards at the sides-of said guide.

In testimony, that I claim the foregoingas my invention I aflix my signature in the presence of two witnesses, this 13th day of -May, A. D. 1912.

HARRY YARRINGTON ARMSTRONG.

Witnesses:

FRED J. WoLrr, WM. 6. THIERS. 

